Ventilating system.



E. M. MATTHEWS.

VENTILATING SYSTEM.

APPLIOATIQN 1711.211 MAY ze, 1911.

Patented' Aug. 1, 1911.

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APPLIOATION FILED MAY 29 um.

999,385. Patented Aug, 1, 1,911.

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TTED sTATEs PATENT oFFIoE.

EDGAR M. MATTHEWS, OF CHICAGO, ILLINOIS, SSIG-NOR OF ONE-HALF TO W. LE'

ROTI-IERMEL, 0F CHICAGO, ILLINOIS.

VENTILATING sYsTEM.

Specification of Letters Patent.

Patented Aug. 71, 1911.

Application led May 29, 1911. Serial No. 630,037.

my object being to enable the window-sashto be utilized as the mediumthrough which to ventilate the car by supplying it with cool, fresh air.i

The invention is.- adapted, however, for interior Ventilating systemsgenerally, where the sash employed for the windows of the inclosure' ishollow.

In the accompanying drawings, Figure 1 is la broken sectional View of apassengercar, showing the interior thereof in side elevation, with twowindows equipped with my improvement, the sash of one window beingclosed and that of the other raised; Fig. 2 is an enlarged section online 2, Fig. 1, and Fig. 3 is an enlarged section on line 3, Fig. 2. V

While my invention is designed to be employed in connection with anyconstruction of hollow window-sash, I have selected for illustrating itthe sash shown and described in Letters Patent No. 977,415, granted tome November 19, 1910, which need not, therefore, be described in detailherein, but the general construction of which may be described asfollows:

A suitable sheet-metal blank, for a hollow sash 4 of 'rectangular shape,is bent to form top, bottom and side rails, with a recess 5 about theinner edge ofthe sash for seating trough-shaped rubber cushiol s 6 inwhich the window-pane 7 is confined 'about its edges, being clamped inplace by hollow metal beads 8 fastened in position to bear against theinner ,sides ofI the cushion. The beads, which are also formed from asheetmetal blank of proper shape, are provided, with tongues 9 to tininclined sockets 10 formed inv the rails.

The car 11 is equipped with any suitable pipe-system for the circulationof air, that shown comprising pipes 12 running along the sides near theVfloor of the car and con-A nected under the car seats 13 withlpcoils14. The pipe-system may be that used 1n .cold

weather for the .circulation of steam to heat the car, to be convertedinto an air-conductmg system for my present purpose.z

In the sash 3 of each window, or of as many windows as may be desired,is a chamber 15, formed by a flanged plate 16 extending lengthwisethrough each rail, the 'chamber being packed aboutits walls with asuitable insulating lining 17, preferably asbestos, fto prevent themetal sash from becomlng corroded by moisture in the air.

Perforations 18 are provided through'the inner faces of the chamber forthe escape of air from it. 'An air+pipe 19 containing outlet-openings191 is housed in the chamber 15, and is fed with air from a pipe 12through j-.a branch-pipe 2() rising from the pipe 12 through thewindow-stoolf'21 into the pipe 19. The pipe 20, which is shown to be.equipped with a valve 22 for permanentlyopening or closing the supplyof air to the sash, also contains a rotary valve 23 for temporarilyopening and closing .the same by lowering and raising the sash. To thatend the valve 23 has its stem 24 provided with a handle 25 carrying alink 26' on its outer end, which is pivotally connect-v valve 23, therod terminating at its upper end in a head 30 litting'a recess 31 in thestool when the head is depressed, to countersink it. The head is in thepath of the lower sash-rail, Ywhereby when the sash is down to close thewindow the rod 27 is depressed to open the valve'23 (the valve 22 beingnormally openvwhen my improved system is in use and normally closed whenit is out of use), permitting air to circulate through the pipe 19 todischarge through the perforations 191 into the' chamber 15 and thenceout through the perforations 18. Adjacent to the chamber 15 is provided,to extend about its innen face, as usual, a stop 32, which. in thepresent case is formed hollow of sheet-metal and provided with per#lined about it for raising it to close thev forations 33 through itswall adjacent to buildings.

' may be that in common use for forcing cold -air vinto hotel, theaterand. other public .What I claim as new and desire'to secure 1. Incombination with an inclosure, a

hollow window-sash forming an air-passage Closed on its outer side andprovided with perforations 1n its inner side, and means for supplyingcool air to sa1d passage, for the purpose set forth.

,2. In combination with an inclosure, a hollow window-sash formingan'air-passage closed on its outer and provided with perforations linits inner side, a perforate air-pipe in said passage, and means forsupplying cool air to said pipe, for the purpose set forth. p

8. In combination with an inclosu'ie, a hollow window-sash forming anair-passage closed 'on its outer side and provided with perforations inits inner side, a perforate air-pipe in said passage, means forsupplying cool air to said pipe, a valve-equipped connection betweensaid meansl and pipe vfor supplying the air to the latter, and aspring-pressed rod connected with the valvestem and ext-endingn into thepath of movement of the sash forj'the purpose set forth. 4. Incombination 'with an inclosure, a hollow window-'sashl forming anair-passage therein closedo'n its outer side and provided 'with-perforations in its .inner side, a perforate air-pipe in said passage,means for supplying cool air to said pipe, and a hollowl stop for thesash at the inner side thereof having` perforations communicating with vsaid air-passage in the sash and the inc'losure whereby the cool airfrom said air-passage enters the inclosure Jehrough said stop, for thepurpose set forth.

5. In combination with lan inclosure, a hollow window-sash forming anair-passage therein closed on its outer side and provided withperforations in its inner side, a: perforate air-pipe in said passage,means for suplplying cool air to said pipe, lend a hollow perforate stopfor the sash atthe inner side thereof having its perforations in oneside registering with those in the sash Land its other perforat-ionsopening to the inclosure, for the purpose set forth.

6. In combination with a railway-car, hollow window-sash formingair-passages therein closed on their-outer sid'es and provided with'perforations in their inner sides, pipes supplying cool-air to the car,perfo-v rate air-pipes in said passages and branchu pipes leading fromsaid airsupplying pipes to said perforate pipes, for the purpose setforth.

7. In combination with a railway-car, hollow window-sash formingair-passages therein closed on their outer sides and provided withperforations in their inner sides,

path of movement of the correspondingsash,

for the purpose set forth. y

8. In combination with arailwaycar,hol

lon7 window-sash forming air passages.` .therein closed on their outersides and provided with perforations in their inner sides, pipessupplying cool air to the car, perforate pipes in .saidair-passages,branch-pipes leading from said. air-supplying pipes to saidperforate pipes, and hollow perforated.

stops for the sash at the inner sides thereof and communicating withsaid air-passages and the interior of the car, for the purposel setforth. Y v 4 9. In combination with a rallway-ear, hollow window-sashforming air-passages therein-closed at their enter sides and provi'dedwith perforations in their inner sides, pipes supplying cool air to thecar, perforate pipes in saidl air-passages, branch-pipes leading fromsaid air-supplying pipes to said perforate pipes, valves in thehranchpipes, means for opening and elosing said valves by closing andopening the' windowsash, and hollow perforated stops for the sash at theinner sides thereof and communicating with said air-passages and theinterior of the car, for the purpose set forth. Y

EDGAR M. MATTHEWS.

In presence of- A. U. THomnN, R. A, SCHAEFER.

